A District man already serving prison time for murder was sentenced to 45 more years for another man’s killing two years ago, authorities said.

Kwan Kearney, 21, was convicted in March of first-degree murder and other offenses related to the death of 19-year-old Jamal Wilson in November 2010 on the unit block of P Street NW, according to the U.S. Attorney’s office.

On Friday, Kearney was sentenced to 45 years in prison by D.C. Superior Court Judge Thomas Motley, authorities said.

Kearney was convicted in December of killing a teenager six days prior, receivign a 60-year prison sentence. The victim in that murder was 17-year-old Joseph Sharp Jr.

The 45-year sentence will run alongside the 60-year term, authorities said.

Read more: The Post’s crime coverage